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Finding the Third Proportional to 100,424.25 and 133,276.50

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Solution

The third proportional to 100,424.25 and 133,276.50 is: 176,875.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,424.25 : 133,276.50 = 133,276.50 : x
  2. Step 2: Convert to fraction form
    100,424.25/133,276.50 = 133,276.50/x
  3. Step 3: Cross multiply
    100,424.25x = 133,276.50 × 133,276.50
  4. Step 4: Simplify right side
    100,424.25x = 17,762,625,452.25
  5. Step 5: Solve for x
    x = 17,762,625,452.25/100,424.25
  6. Step 6: Final answer
    x = 176,875.86

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.